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Commit | Line | Data |
---|---|---|
7bd9bcf3 MH |
1 | /* |
2 | * The backend-independent part of the reference module. | |
3 | */ | |
4 | ||
95fc7512 | 5 | #include "cache.h" |
7d4558c4 | 6 | #include "hashmap.h" |
697cc8ef | 7 | #include "lockfile.h" |
85023577 | 8 | #include "refs.h" |
4cb77009 | 9 | #include "refs/refs-internal.h" |
cf0adba7 JH |
10 | #include "object.h" |
11 | #include "tag.h" | |
5d0bc90e | 12 | #include "submodule.h" |
3581d793 | 13 | |
3dce444f RS |
14 | /* |
15 | * List of all available backends | |
16 | */ | |
17 | static struct ref_storage_be *refs_backends = &refs_be_files; | |
18 | ||
19 | static struct ref_storage_be *find_ref_storage_backend(const char *name) | |
20 | { | |
21 | struct ref_storage_be *be; | |
22 | for (be = refs_backends; be; be = be->next) | |
23 | if (!strcmp(be->name, name)) | |
24 | return be; | |
25 | return NULL; | |
26 | } | |
27 | ||
28 | int ref_storage_backend_exists(const char *name) | |
29 | { | |
30 | return find_ref_storage_backend(name) != NULL; | |
31 | } | |
32 | ||
bc5fd6d3 | 33 | /* |
dde8a902 DT |
34 | * How to handle various characters in refnames: |
35 | * 0: An acceptable character for refs | |
5e650228 JH |
36 | * 1: End-of-component |
37 | * 2: ., look for a preceding . to reject .. in refs | |
38 | * 3: {, look for a preceding @ to reject @{ in refs | |
53a8555e | 39 | * 4: A bad character: ASCII control characters, and |
cd377f45 JK |
40 | * ":", "?", "[", "\", "^", "~", SP, or TAB |
41 | * 5: *, reject unless REFNAME_REFSPEC_PATTERN is set | |
dde8a902 DT |
42 | */ |
43 | static unsigned char refname_disposition[256] = { | |
5e650228 JH |
44 | 1, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, |
45 | 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, | |
cd377f45 | 46 | 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 2, 1, |
5e650228 | 47 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 0, 4, |
dde8a902 | 48 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
5e650228 JH |
49 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 0, 4, 0, |
50 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
51 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 4, 4 | |
dde8a902 DT |
52 | }; |
53 | ||
54 | /* | |
55 | * Try to read one refname component from the front of refname. | |
56 | * Return the length of the component found, or -1 if the component is | |
57 | * not legal. It is legal if it is something reasonable to have under | |
58 | * ".git/refs/"; We do not like it if: | |
bc5fd6d3 MH |
59 | * |
60 | * - any path component of it begins with ".", or | |
61 | * - it has double dots "..", or | |
53a8555e | 62 | * - it has ASCII control characters, or |
cd377f45 JK |
63 | * - it has ":", "?", "[", "\", "^", "~", SP, or TAB anywhere, or |
64 | * - it has "*" anywhere unless REFNAME_REFSPEC_PATTERN is set, or | |
53a8555e JK |
65 | * - it ends with a "/", or |
66 | * - it ends with ".lock", or | |
67 | * - it contains a "@{" portion | |
bc5fd6d3 | 68 | */ |
cd377f45 | 69 | static int check_refname_component(const char *refname, int *flags) |
bc5fd6d3 MH |
70 | { |
71 | const char *cp; | |
72 | char last = '\0'; | |
73 | ||
74 | for (cp = refname; ; cp++) { | |
dde8a902 DT |
75 | int ch = *cp & 255; |
76 | unsigned char disp = refname_disposition[ch]; | |
77 | switch (disp) { | |
5e650228 | 78 | case 1: |
dde8a902 | 79 | goto out; |
5e650228 | 80 | case 2: |
dde8a902 DT |
81 | if (last == '.') |
82 | return -1; /* Refname contains "..". */ | |
83 | break; | |
5e650228 | 84 | case 3: |
dde8a902 DT |
85 | if (last == '@') |
86 | return -1; /* Refname contains "@{". */ | |
bc5fd6d3 | 87 | break; |
5e650228 | 88 | case 4: |
dde8a902 | 89 | return -1; |
cd377f45 JK |
90 | case 5: |
91 | if (!(*flags & REFNAME_REFSPEC_PATTERN)) | |
92 | return -1; /* refspec can't be a pattern */ | |
93 | ||
94 | /* | |
95 | * Unset the pattern flag so that we only accept | |
96 | * a single asterisk for one side of refspec. | |
97 | */ | |
98 | *flags &= ~ REFNAME_REFSPEC_PATTERN; | |
99 | break; | |
dde8a902 | 100 | } |
bc5fd6d3 MH |
101 | last = ch; |
102 | } | |
dde8a902 | 103 | out: |
bc5fd6d3 | 104 | if (cp == refname) |
dac529e4 | 105 | return 0; /* Component has zero length. */ |
f3cc52d8 JN |
106 | if (refname[0] == '.') |
107 | return -1; /* Component starts with '.'. */ | |
7108ad23 MH |
108 | if (cp - refname >= LOCK_SUFFIX_LEN && |
109 | !memcmp(cp - LOCK_SUFFIX_LEN, LOCK_SUFFIX, LOCK_SUFFIX_LEN)) | |
bc5fd6d3 MH |
110 | return -1; /* Refname ends with ".lock". */ |
111 | return cp - refname; | |
112 | } | |
113 | ||
5e650228 | 114 | int check_refname_format(const char *refname, int flags) |
bc5fd6d3 MH |
115 | { |
116 | int component_len, component_count = 0; | |
117 | ||
9ba89f48 FC |
118 | if (!strcmp(refname, "@")) |
119 | /* Refname is a single character '@'. */ | |
120 | return -1; | |
121 | ||
bc5fd6d3 MH |
122 | while (1) { |
123 | /* We are at the start of a path component. */ | |
cd377f45 JK |
124 | component_len = check_refname_component(refname, &flags); |
125 | if (component_len <= 0) | |
126 | return -1; | |
127 | ||
bc5fd6d3 MH |
128 | component_count++; |
129 | if (refname[component_len] == '\0') | |
130 | break; | |
131 | /* Skip to next component. */ | |
132 | refname += component_len + 1; | |
133 | } | |
134 | ||
135 | if (refname[component_len - 1] == '.') | |
136 | return -1; /* Refname ends with '.'. */ | |
137 | if (!(flags & REFNAME_ALLOW_ONELEVEL) && component_count < 2) | |
138 | return -1; /* Refname has only one component. */ | |
139 | return 0; | |
140 | } | |
141 | ||
4cb77009 | 142 | int refname_is_safe(const char *refname) |
d0f810f0 | 143 | { |
39950fef MH |
144 | const char *rest; |
145 | ||
146 | if (skip_prefix(refname, "refs/", &rest)) { | |
d0f810f0 RS |
147 | char *buf; |
148 | int result; | |
e40f3557 MH |
149 | size_t restlen = strlen(rest); |
150 | ||
151 | /* rest must not be empty, or start or end with "/" */ | |
152 | if (!restlen || *rest == '/' || rest[restlen - 1] == '/') | |
153 | return 0; | |
d0f810f0 | 154 | |
d0f810f0 RS |
155 | /* |
156 | * Does the refname try to escape refs/? | |
157 | * For example: refs/foo/../bar is safe but refs/foo/../../bar | |
158 | * is not. | |
159 | */ | |
e40f3557 MH |
160 | buf = xmallocz(restlen); |
161 | result = !normalize_path_copy(buf, rest) && !strcmp(buf, rest); | |
d0f810f0 RS |
162 | free(buf); |
163 | return result; | |
164 | } | |
35db25c6 MH |
165 | |
166 | do { | |
d0f810f0 RS |
167 | if (!isupper(*refname) && *refname != '_') |
168 | return 0; | |
169 | refname++; | |
35db25c6 | 170 | } while (*refname); |
d0f810f0 RS |
171 | return 1; |
172 | } | |
173 | ||
7bd9bcf3 MH |
174 | char *resolve_refdup(const char *refname, int resolve_flags, |
175 | unsigned char *sha1, int *flags) | |
e1e22e37 | 176 | { |
7bd9bcf3 MH |
177 | return xstrdup_or_null(resolve_ref_unsafe(refname, resolve_flags, |
178 | sha1, flags)); | |
cddc4258 MH |
179 | } |
180 | ||
7bd9bcf3 MH |
181 | /* The argument to filter_refs */ |
182 | struct ref_filter { | |
183 | const char *pattern; | |
184 | each_ref_fn *fn; | |
185 | void *cb_data; | |
186 | }; | |
432ad41e | 187 | |
7bd9bcf3 | 188 | int read_ref_full(const char *refname, int resolve_flags, unsigned char *sha1, int *flags) |
732134ed | 189 | { |
7bd9bcf3 MH |
190 | if (resolve_ref_unsafe(refname, resolve_flags, sha1, flags)) |
191 | return 0; | |
192 | return -1; | |
732134ed MH |
193 | } |
194 | ||
7bd9bcf3 | 195 | int read_ref(const char *refname, unsigned char *sha1) |
cddc4258 | 196 | { |
7bd9bcf3 | 197 | return read_ref_full(refname, RESOLVE_REF_READING, sha1, NULL); |
c774aab9 JP |
198 | } |
199 | ||
7bd9bcf3 | 200 | int ref_exists(const char *refname) |
bc5fd6d3 | 201 | { |
7bd9bcf3 MH |
202 | unsigned char sha1[20]; |
203 | return !!resolve_ref_unsafe(refname, RESOLVE_REF_READING, sha1, NULL); | |
bc5fd6d3 MH |
204 | } |
205 | ||
7bd9bcf3 MH |
206 | static int filter_refs(const char *refname, const struct object_id *oid, |
207 | int flags, void *data) | |
432ad41e | 208 | { |
7bd9bcf3 MH |
209 | struct ref_filter *filter = (struct ref_filter *)data; |
210 | ||
211 | if (wildmatch(filter->pattern, refname, 0, NULL)) | |
212 | return 0; | |
213 | return filter->fn(refname, oid, flags, filter->cb_data); | |
432ad41e MH |
214 | } |
215 | ||
7bd9bcf3 | 216 | enum peel_status peel_object(const unsigned char *name, unsigned char *sha1) |
c774aab9 | 217 | { |
7bd9bcf3 | 218 | struct object *o = lookup_unknown_object(name); |
c774aab9 | 219 | |
7bd9bcf3 MH |
220 | if (o->type == OBJ_NONE) { |
221 | int type = sha1_object_info(name, NULL); | |
222 | if (type < 0 || !object_as_type(o, type, 0)) | |
223 | return PEEL_INVALID; | |
224 | } | |
bc5fd6d3 | 225 | |
7bd9bcf3 MH |
226 | if (o->type != OBJ_TAG) |
227 | return PEEL_NON_TAG; | |
e1980c9d | 228 | |
7bd9bcf3 MH |
229 | o = deref_tag_noverify(o); |
230 | if (!o) | |
231 | return PEEL_INVALID; | |
232 | ||
844a9ce4 | 233 | hashcpy(sha1, o->oid.hash); |
7bd9bcf3 | 234 | return PEEL_PEELED; |
e1980c9d JH |
235 | } |
236 | ||
7bd9bcf3 MH |
237 | struct warn_if_dangling_data { |
238 | FILE *fp; | |
239 | const char *refname; | |
240 | const struct string_list *refnames; | |
241 | const char *msg_fmt; | |
242 | }; | |
bc5fd6d3 | 243 | |
7bd9bcf3 MH |
244 | static int warn_if_dangling_symref(const char *refname, const struct object_id *oid, |
245 | int flags, void *cb_data) | |
246 | { | |
247 | struct warn_if_dangling_data *d = cb_data; | |
248 | const char *resolves_to; | |
249 | struct object_id junk; | |
bc5fd6d3 | 250 | |
7bd9bcf3 MH |
251 | if (!(flags & REF_ISSYMREF)) |
252 | return 0; | |
bc5fd6d3 | 253 | |
7bd9bcf3 MH |
254 | resolves_to = resolve_ref_unsafe(refname, 0, junk.hash, NULL); |
255 | if (!resolves_to | |
256 | || (d->refname | |
257 | ? strcmp(resolves_to, d->refname) | |
258 | : !string_list_has_string(d->refnames, resolves_to))) { | |
259 | return 0; | |
260 | } | |
bc5fd6d3 | 261 | |
7bd9bcf3 MH |
262 | fprintf(d->fp, d->msg_fmt, refname); |
263 | fputc('\n', d->fp); | |
264 | return 0; | |
bc5fd6d3 MH |
265 | } |
266 | ||
7bd9bcf3 | 267 | void warn_dangling_symref(FILE *fp, const char *msg_fmt, const char *refname) |
f348ac92 | 268 | { |
7bd9bcf3 MH |
269 | struct warn_if_dangling_data data; |
270 | ||
271 | data.fp = fp; | |
272 | data.refname = refname; | |
273 | data.refnames = NULL; | |
274 | data.msg_fmt = msg_fmt; | |
275 | for_each_rawref(warn_if_dangling_symref, &data); | |
f348ac92 MH |
276 | } |
277 | ||
7bd9bcf3 | 278 | void warn_dangling_symrefs(FILE *fp, const char *msg_fmt, const struct string_list *refnames) |
432ad41e | 279 | { |
7bd9bcf3 | 280 | struct warn_if_dangling_data data; |
432ad41e | 281 | |
7bd9bcf3 MH |
282 | data.fp = fp; |
283 | data.refname = NULL; | |
284 | data.refnames = refnames; | |
285 | data.msg_fmt = msg_fmt; | |
286 | for_each_rawref(warn_if_dangling_symref, &data); | |
432ad41e MH |
287 | } |
288 | ||
7bd9bcf3 | 289 | int for_each_tag_ref(each_ref_fn fn, void *cb_data) |
432ad41e | 290 | { |
7bd9bcf3 | 291 | return for_each_ref_in("refs/tags/", fn, cb_data); |
432ad41e MH |
292 | } |
293 | ||
7bd9bcf3 | 294 | int for_each_tag_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data) |
506a760d | 295 | { |
7bd9bcf3 | 296 | return for_each_ref_in_submodule(submodule, "refs/tags/", fn, cb_data); |
432ad41e MH |
297 | } |
298 | ||
7bd9bcf3 | 299 | int for_each_branch_ref(each_ref_fn fn, void *cb_data) |
432ad41e | 300 | { |
7bd9bcf3 | 301 | return for_each_ref_in("refs/heads/", fn, cb_data); |
432ad41e MH |
302 | } |
303 | ||
7bd9bcf3 | 304 | int for_each_branch_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data) |
202a56a9 | 305 | { |
7bd9bcf3 | 306 | return for_each_ref_in_submodule(submodule, "refs/heads/", fn, cb_data); |
202a56a9 | 307 | } |
432ad41e | 308 | |
7bd9bcf3 | 309 | int for_each_remote_ref(each_ref_fn fn, void *cb_data) |
e9c4c111 | 310 | { |
7bd9bcf3 | 311 | return for_each_ref_in("refs/remotes/", fn, cb_data); |
202a56a9 MH |
312 | } |
313 | ||
7bd9bcf3 | 314 | int for_each_remote_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data) |
e9c4c111 | 315 | { |
7bd9bcf3 | 316 | return for_each_ref_in_submodule(submodule, "refs/remotes/", fn, cb_data); |
662428f4 | 317 | } |
c774aab9 | 318 | |
7bd9bcf3 MH |
319 | int head_ref_namespaced(each_ref_fn fn, void *cb_data) |
320 | { | |
321 | struct strbuf buf = STRBUF_INIT; | |
322 | int ret = 0; | |
323 | struct object_id oid; | |
324 | int flag; | |
c774aab9 | 325 | |
7bd9bcf3 MH |
326 | strbuf_addf(&buf, "%sHEAD", get_git_namespace()); |
327 | if (!read_ref_full(buf.buf, RESOLVE_REF_READING, oid.hash, &flag)) | |
328 | ret = fn(buf.buf, &oid, flag, cb_data); | |
329 | strbuf_release(&buf); | |
c774aab9 | 330 | |
7bd9bcf3 | 331 | return ret; |
e9c4c111 | 332 | } |
c774aab9 | 333 | |
7bd9bcf3 MH |
334 | int for_each_glob_ref_in(each_ref_fn fn, const char *pattern, |
335 | const char *prefix, void *cb_data) | |
662428f4 | 336 | { |
7bd9bcf3 MH |
337 | struct strbuf real_pattern = STRBUF_INIT; |
338 | struct ref_filter filter; | |
339 | int ret; | |
d08bae7e | 340 | |
59556548 | 341 | if (!prefix && !starts_with(pattern, "refs/")) |
d08bae7e | 342 | strbuf_addstr(&real_pattern, "refs/"); |
b09fe971 IL |
343 | else if (prefix) |
344 | strbuf_addstr(&real_pattern, prefix); | |
d08bae7e IL |
345 | strbuf_addstr(&real_pattern, pattern); |
346 | ||
894a9d33 | 347 | if (!has_glob_specials(pattern)) { |
9517e6b8 | 348 | /* Append implied '/' '*' if not present. */ |
00b6c178 | 349 | strbuf_complete(&real_pattern, '/'); |
d08bae7e IL |
350 | /* No need to check for '*', there is none. */ |
351 | strbuf_addch(&real_pattern, '*'); | |
352 | } | |
353 | ||
354 | filter.pattern = real_pattern.buf; | |
355 | filter.fn = fn; | |
356 | filter.cb_data = cb_data; | |
357 | ret = for_each_ref(filter_refs, &filter); | |
358 | ||
359 | strbuf_release(&real_pattern); | |
360 | return ret; | |
361 | } | |
362 | ||
b09fe971 IL |
363 | int for_each_glob_ref(each_ref_fn fn, const char *pattern, void *cb_data) |
364 | { | |
365 | return for_each_glob_ref_in(fn, pattern, NULL, cb_data); | |
366 | } | |
367 | ||
4577e483 | 368 | const char *prettify_refname(const char *name) |
a9c37a72 | 369 | { |
a9c37a72 | 370 | return name + ( |
59556548 CC |
371 | starts_with(name, "refs/heads/") ? 11 : |
372 | starts_with(name, "refs/tags/") ? 10 : | |
373 | starts_with(name, "refs/remotes/") ? 13 : | |
a9c37a72 DB |
374 | 0); |
375 | } | |
376 | ||
54457fe5 | 377 | static const char *ref_rev_parse_rules[] = { |
79803322 SP |
378 | "%.*s", |
379 | "refs/%.*s", | |
380 | "refs/tags/%.*s", | |
381 | "refs/heads/%.*s", | |
382 | "refs/remotes/%.*s", | |
383 | "refs/remotes/%.*s/HEAD", | |
384 | NULL | |
385 | }; | |
386 | ||
54457fe5 | 387 | int refname_match(const char *abbrev_name, const char *full_name) |
79803322 SP |
388 | { |
389 | const char **p; | |
390 | const int abbrev_name_len = strlen(abbrev_name); | |
391 | ||
54457fe5 | 392 | for (p = ref_rev_parse_rules; *p; p++) { |
79803322 SP |
393 | if (!strcmp(full_name, mkpath(*p, abbrev_name_len, abbrev_name))) { |
394 | return 1; | |
395 | } | |
396 | } | |
397 | ||
398 | return 0; | |
399 | } | |
400 | ||
ff74f7f1 JH |
401 | /* |
402 | * *string and *len will only be substituted, and *string returned (for | |
403 | * later free()ing) if the string passed in is a magic short-hand form | |
404 | * to name a branch. | |
405 | */ | |
406 | static char *substitute_branch_name(const char **string, int *len) | |
407 | { | |
408 | struct strbuf buf = STRBUF_INIT; | |
0e9f62da | 409 | int ret = interpret_branch_name(*string, *len, &buf, 0); |
ff74f7f1 JH |
410 | |
411 | if (ret == *len) { | |
412 | size_t size; | |
413 | *string = strbuf_detach(&buf, &size); | |
414 | *len = size; | |
415 | return (char *)*string; | |
416 | } | |
417 | ||
418 | return NULL; | |
419 | } | |
420 | ||
421 | int dwim_ref(const char *str, int len, unsigned char *sha1, char **ref) | |
422 | { | |
423 | char *last_branch = substitute_branch_name(&str, &len); | |
41da7111 NTND |
424 | int refs_found = expand_ref(str, len, sha1, ref); |
425 | free(last_branch); | |
426 | return refs_found; | |
427 | } | |
428 | ||
429 | int expand_ref(const char *str, int len, unsigned char *sha1, char **ref) | |
430 | { | |
ff74f7f1 JH |
431 | const char **p, *r; |
432 | int refs_found = 0; | |
433 | ||
434 | *ref = NULL; | |
435 | for (p = ref_rev_parse_rules; *p; p++) { | |
436 | char fullref[PATH_MAX]; | |
437 | unsigned char sha1_from_ref[20]; | |
438 | unsigned char *this_result; | |
439 | int flag; | |
440 | ||
441 | this_result = refs_found ? sha1_from_ref : sha1; | |
442 | mksnpath(fullref, sizeof(fullref), *p, len, str); | |
7695d118 RS |
443 | r = resolve_ref_unsafe(fullref, RESOLVE_REF_READING, |
444 | this_result, &flag); | |
ff74f7f1 JH |
445 | if (r) { |
446 | if (!refs_found++) | |
447 | *ref = xstrdup(r); | |
448 | if (!warn_ambiguous_refs) | |
449 | break; | |
55956350 | 450 | } else if ((flag & REF_ISSYMREF) && strcmp(fullref, "HEAD")) { |
ff74f7f1 | 451 | warning("ignoring dangling symref %s.", fullref); |
55956350 JH |
452 | } else if ((flag & REF_ISBROKEN) && strchr(fullref, '/')) { |
453 | warning("ignoring broken ref %s.", fullref); | |
454 | } | |
ff74f7f1 | 455 | } |
ff74f7f1 JH |
456 | return refs_found; |
457 | } | |
458 | ||
459 | int dwim_log(const char *str, int len, unsigned char *sha1, char **log) | |
460 | { | |
461 | char *last_branch = substitute_branch_name(&str, &len); | |
462 | const char **p; | |
463 | int logs_found = 0; | |
464 | ||
465 | *log = NULL; | |
466 | for (p = ref_rev_parse_rules; *p; p++) { | |
ff74f7f1 JH |
467 | unsigned char hash[20]; |
468 | char path[PATH_MAX]; | |
469 | const char *ref, *it; | |
470 | ||
471 | mksnpath(path, sizeof(path), *p, len, str); | |
7695d118 RS |
472 | ref = resolve_ref_unsafe(path, RESOLVE_REF_READING, |
473 | hash, NULL); | |
ff74f7f1 JH |
474 | if (!ref) |
475 | continue; | |
4da58835 | 476 | if (reflog_exists(path)) |
ff74f7f1 | 477 | it = path; |
4da58835 | 478 | else if (strcmp(ref, path) && reflog_exists(ref)) |
ff74f7f1 JH |
479 | it = ref; |
480 | else | |
481 | continue; | |
482 | if (!logs_found++) { | |
483 | *log = xstrdup(it); | |
484 | hashcpy(sha1, hash); | |
485 | } | |
7bd9bcf3 MH |
486 | if (!warn_ambiguous_refs) |
487 | break; | |
c0277d15 | 488 | } |
7bd9bcf3 MH |
489 | free(last_branch); |
490 | return logs_found; | |
2ddb5d17 BK |
491 | } |
492 | ||
266b1827 DT |
493 | static int is_per_worktree_ref(const char *refname) |
494 | { | |
ce414b33 DT |
495 | return !strcmp(refname, "HEAD") || |
496 | starts_with(refname, "refs/bisect/"); | |
266b1827 DT |
497 | } |
498 | ||
499 | static int is_pseudoref_syntax(const char *refname) | |
500 | { | |
501 | const char *c; | |
502 | ||
503 | for (c = refname; *c; c++) { | |
504 | if (!isupper(*c) && *c != '-' && *c != '_') | |
505 | return 0; | |
506 | } | |
507 | ||
508 | return 1; | |
509 | } | |
510 | ||
511 | enum ref_type ref_type(const char *refname) | |
512 | { | |
513 | if (is_per_worktree_ref(refname)) | |
514 | return REF_TYPE_PER_WORKTREE; | |
515 | if (is_pseudoref_syntax(refname)) | |
516 | return REF_TYPE_PSEUDOREF; | |
517 | return REF_TYPE_NORMAL; | |
518 | } | |
519 | ||
74ec19d4 DT |
520 | static int write_pseudoref(const char *pseudoref, const unsigned char *sha1, |
521 | const unsigned char *old_sha1, struct strbuf *err) | |
522 | { | |
523 | const char *filename; | |
524 | int fd; | |
525 | static struct lock_file lock; | |
526 | struct strbuf buf = STRBUF_INIT; | |
527 | int ret = -1; | |
528 | ||
529 | strbuf_addf(&buf, "%s\n", sha1_to_hex(sha1)); | |
530 | ||
531 | filename = git_path("%s", pseudoref); | |
532 | fd = hold_lock_file_for_update(&lock, filename, LOCK_DIE_ON_ERROR); | |
533 | if (fd < 0) { | |
0568c8e9 | 534 | strbuf_addf(err, "could not open '%s' for writing: %s", |
74ec19d4 DT |
535 | filename, strerror(errno)); |
536 | return -1; | |
537 | } | |
538 | ||
539 | if (old_sha1) { | |
540 | unsigned char actual_old_sha1[20]; | |
2c3aed13 DT |
541 | |
542 | if (read_ref(pseudoref, actual_old_sha1)) | |
543 | die("could not read ref '%s'", pseudoref); | |
74ec19d4 | 544 | if (hashcmp(actual_old_sha1, old_sha1)) { |
0568c8e9 | 545 | strbuf_addf(err, "unexpected sha1 when writing '%s'", pseudoref); |
74ec19d4 DT |
546 | rollback_lock_file(&lock); |
547 | goto done; | |
548 | } | |
549 | } | |
550 | ||
551 | if (write_in_full(fd, buf.buf, buf.len) != buf.len) { | |
0568c8e9 | 552 | strbuf_addf(err, "could not write to '%s'", filename); |
74ec19d4 DT |
553 | rollback_lock_file(&lock); |
554 | goto done; | |
555 | } | |
556 | ||
557 | commit_lock_file(&lock); | |
558 | ret = 0; | |
559 | done: | |
560 | strbuf_release(&buf); | |
561 | return ret; | |
562 | } | |
563 | ||
564 | static int delete_pseudoref(const char *pseudoref, const unsigned char *old_sha1) | |
565 | { | |
566 | static struct lock_file lock; | |
567 | const char *filename; | |
568 | ||
569 | filename = git_path("%s", pseudoref); | |
570 | ||
571 | if (old_sha1 && !is_null_sha1(old_sha1)) { | |
572 | int fd; | |
573 | unsigned char actual_old_sha1[20]; | |
574 | ||
575 | fd = hold_lock_file_for_update(&lock, filename, | |
576 | LOCK_DIE_ON_ERROR); | |
577 | if (fd < 0) | |
578 | die_errno(_("Could not open '%s' for writing"), filename); | |
2c3aed13 DT |
579 | if (read_ref(pseudoref, actual_old_sha1)) |
580 | die("could not read ref '%s'", pseudoref); | |
74ec19d4 DT |
581 | if (hashcmp(actual_old_sha1, old_sha1)) { |
582 | warning("Unexpected sha1 when deleting %s", pseudoref); | |
583 | rollback_lock_file(&lock); | |
584 | return -1; | |
a4c653df | 585 | } |
74ec19d4 DT |
586 | |
587 | unlink(filename); | |
588 | rollback_lock_file(&lock); | |
589 | } else { | |
590 | unlink(filename); | |
4bd18c43 | 591 | } |
a4c653df | 592 | |
4bd18c43 | 593 | return 0; |
95fc7512 | 594 | } |
d556fae2 | 595 | |
755b49ae KM |
596 | int delete_ref(const char *msg, const char *refname, |
597 | const unsigned char *old_sha1, unsigned int flags) | |
41b625b0 | 598 | { |
7521cc46 | 599 | struct ref_transaction *transaction; |
a4c653df | 600 | struct strbuf err = STRBUF_INIT; |
8b5157e4 | 601 | |
74ec19d4 | 602 | if (ref_type(refname) == REF_TYPE_PSEUDOREF) |
080cc646 | 603 | return delete_pseudoref(refname, old_sha1); |
d48744d1 | 604 | |
7521cc46 RS |
605 | transaction = ref_transaction_begin(&err); |
606 | if (!transaction || | |
fc67a082 | 607 | ref_transaction_delete(transaction, refname, old_sha1, |
755b49ae | 608 | flags, msg, &err) || |
db7516ab | 609 | ref_transaction_commit(transaction, &err)) { |
7521cc46 RS |
610 | error("%s", err.buf); |
611 | ref_transaction_free(transaction); | |
612 | strbuf_release(&err); | |
c0277d15 | 613 | return 1; |
41b625b0 | 614 | } |
7bd9bcf3 MH |
615 | ref_transaction_free(transaction); |
616 | strbuf_release(&err); | |
b531394d BC |
617 | return 0; |
618 | } | |
41b625b0 | 619 | |
4cb77009 | 620 | int copy_reflog_msg(char *buf, const char *msg) |
0ec29a47 JH |
621 | { |
622 | char *cp = buf; | |
623 | char c; | |
624 | int wasspace = 1; | |
8b5157e4 | 625 | |
0ec29a47 JH |
626 | *cp++ = '\t'; |
627 | while ((c = *msg++)) { | |
628 | if (wasspace && isspace(c)) | |
629 | continue; | |
630 | wasspace = isspace(c); | |
631 | if (wasspace) | |
632 | c = ' '; | |
633 | *cp++ = c; | |
a4c653df | 634 | } |
0ec29a47 JH |
635 | while (buf < cp && isspace(cp[-1])) |
636 | cp--; | |
637 | *cp++ = '\n'; | |
638 | return cp - buf; | |
639 | } | |
8b5157e4 | 640 | |
4cb77009 | 641 | int should_autocreate_reflog(const char *refname) |
4e2bef57 | 642 | { |
341fb286 CW |
643 | switch (log_all_ref_updates) { |
644 | case LOG_REFS_ALWAYS: | |
645 | return 1; | |
646 | case LOG_REFS_NORMAL: | |
647 | return starts_with(refname, "refs/heads/") || | |
648 | starts_with(refname, "refs/remotes/") || | |
649 | starts_with(refname, "refs/notes/") || | |
650 | !strcmp(refname, "HEAD"); | |
651 | default: | |
4e2bef57 | 652 | return 0; |
341fb286 | 653 | } |
4e2bef57 DT |
654 | } |
655 | ||
e7e0f26e | 656 | int is_branch(const char *refname) |
c3b0dec5 | 657 | { |
59556548 | 658 | return !strcmp(refname, "HEAD") || starts_with(refname, "refs/heads/"); |
41b625b0 NP |
659 | } |
660 | ||
4207ed28 RS |
661 | struct read_ref_at_cb { |
662 | const char *refname; | |
663 | unsigned long at_time; | |
664 | int cnt; | |
665 | int reccnt; | |
666 | unsigned char *sha1; | |
667 | int found_it; | |
668 | ||
669 | unsigned char osha1[20]; | |
670 | unsigned char nsha1[20]; | |
671 | int tz; | |
672 | unsigned long date; | |
673 | char **msg; | |
674 | unsigned long *cutoff_time; | |
675 | int *cutoff_tz; | |
676 | int *cutoff_cnt; | |
677 | }; | |
678 | ||
9461d272 | 679 | static int read_ref_at_ent(struct object_id *ooid, struct object_id *noid, |
4207ed28 RS |
680 | const char *email, unsigned long timestamp, int tz, |
681 | const char *message, void *cb_data) | |
682 | { | |
683 | struct read_ref_at_cb *cb = cb_data; | |
684 | ||
685 | cb->reccnt++; | |
686 | cb->tz = tz; | |
687 | cb->date = timestamp; | |
688 | ||
689 | if (timestamp <= cb->at_time || cb->cnt == 0) { | |
690 | if (cb->msg) | |
691 | *cb->msg = xstrdup(message); | |
692 | if (cb->cutoff_time) | |
693 | *cb->cutoff_time = timestamp; | |
694 | if (cb->cutoff_tz) | |
695 | *cb->cutoff_tz = tz; | |
696 | if (cb->cutoff_cnt) | |
697 | *cb->cutoff_cnt = cb->reccnt - 1; | |
698 | /* | |
699 | * we have not yet updated cb->[n|o]sha1 so they still | |
700 | * hold the values for the previous record. | |
701 | */ | |
702 | if (!is_null_sha1(cb->osha1)) { | |
9461d272 | 703 | hashcpy(cb->sha1, noid->hash); |
704 | if (hashcmp(cb->osha1, noid->hash)) | |
4207ed28 | 705 | warning("Log for ref %s has gap after %s.", |
a5481a6c | 706 | cb->refname, show_date(cb->date, cb->tz, DATE_MODE(RFC2822))); |
4207ed28 RS |
707 | } |
708 | else if (cb->date == cb->at_time) | |
9461d272 | 709 | hashcpy(cb->sha1, noid->hash); |
710 | else if (hashcmp(noid->hash, cb->sha1)) | |
4207ed28 RS |
711 | warning("Log for ref %s unexpectedly ended on %s.", |
712 | cb->refname, show_date(cb->date, cb->tz, | |
a5481a6c | 713 | DATE_MODE(RFC2822))); |
9461d272 | 714 | hashcpy(cb->osha1, ooid->hash); |
715 | hashcpy(cb->nsha1, noid->hash); | |
4207ed28 RS |
716 | cb->found_it = 1; |
717 | return 1; | |
718 | } | |
9461d272 | 719 | hashcpy(cb->osha1, ooid->hash); |
720 | hashcpy(cb->nsha1, noid->hash); | |
4207ed28 RS |
721 | if (cb->cnt > 0) |
722 | cb->cnt--; | |
723 | return 0; | |
724 | } | |
725 | ||
9461d272 | 726 | static int read_ref_at_ent_oldest(struct object_id *ooid, struct object_id *noid, |
4207ed28 RS |
727 | const char *email, unsigned long timestamp, |
728 | int tz, const char *message, void *cb_data) | |
729 | { | |
730 | struct read_ref_at_cb *cb = cb_data; | |
731 | ||
732 | if (cb->msg) | |
733 | *cb->msg = xstrdup(message); | |
734 | if (cb->cutoff_time) | |
735 | *cb->cutoff_time = timestamp; | |
736 | if (cb->cutoff_tz) | |
737 | *cb->cutoff_tz = tz; | |
738 | if (cb->cutoff_cnt) | |
739 | *cb->cutoff_cnt = cb->reccnt; | |
9461d272 | 740 | hashcpy(cb->sha1, ooid->hash); |
4207ed28 | 741 | if (is_null_sha1(cb->sha1)) |
9461d272 | 742 | hashcpy(cb->sha1, noid->hash); |
4207ed28 RS |
743 | /* We just want the first entry */ |
744 | return 1; | |
16d7cc90 JH |
745 | } |
746 | ||
c41a87dd | 747 | int read_ref_at(const char *refname, unsigned int flags, unsigned long at_time, int cnt, |
dfefa935 MH |
748 | unsigned char *sha1, char **msg, |
749 | unsigned long *cutoff_time, int *cutoff_tz, int *cutoff_cnt) | |
d556fae2 | 750 | { |
4207ed28 | 751 | struct read_ref_at_cb cb; |
d556fae2 | 752 | |
4207ed28 RS |
753 | memset(&cb, 0, sizeof(cb)); |
754 | cb.refname = refname; | |
755 | cb.at_time = at_time; | |
756 | cb.cnt = cnt; | |
757 | cb.msg = msg; | |
758 | cb.cutoff_time = cutoff_time; | |
759 | cb.cutoff_tz = cutoff_tz; | |
760 | cb.cutoff_cnt = cutoff_cnt; | |
761 | cb.sha1 = sha1; | |
762 | ||
763 | for_each_reflog_ent_reverse(refname, read_ref_at_ent, &cb); | |
764 | ||
c41a87dd DA |
765 | if (!cb.reccnt) { |
766 | if (flags & GET_SHA1_QUIETLY) | |
767 | exit(128); | |
768 | else | |
769 | die("Log for %s is empty.", refname); | |
770 | } | |
4207ed28 RS |
771 | if (cb.found_it) |
772 | return 0; | |
773 | ||
774 | for_each_reflog_ent(refname, read_ref_at_ent_oldest, &cb); | |
d556fae2 | 775 | |
16d7cc90 | 776 | return 1; |
d556fae2 | 777 | } |
2ff81662 | 778 | |
93a644ea | 779 | struct ref_transaction *ref_transaction_begin(struct strbuf *err) |
caa4046c | 780 | { |
5a603b04 JN |
781 | assert(err); |
782 | ||
caa4046c MH |
783 | return xcalloc(1, sizeof(struct ref_transaction)); |
784 | } | |
785 | ||
026bd1d3 | 786 | void ref_transaction_free(struct ref_transaction *transaction) |
caa4046c MH |
787 | { |
788 | int i; | |
789 | ||
1b07255c RS |
790 | if (!transaction) |
791 | return; | |
792 | ||
db7516ab RS |
793 | for (i = 0; i < transaction->nr; i++) { |
794 | free(transaction->updates[i]->msg); | |
88615910 | 795 | free(transaction->updates[i]); |
db7516ab | 796 | } |
caa4046c MH |
797 | free(transaction->updates); |
798 | free(transaction); | |
799 | } | |
800 | ||
71564516 MH |
801 | struct ref_update *ref_transaction_add_update( |
802 | struct ref_transaction *transaction, | |
803 | const char *refname, unsigned int flags, | |
804 | const unsigned char *new_sha1, | |
805 | const unsigned char *old_sha1, | |
806 | const char *msg) | |
caa4046c | 807 | { |
96ffc06f | 808 | struct ref_update *update; |
71564516 MH |
809 | |
810 | if (transaction->state != REF_TRANSACTION_OPEN) | |
811 | die("BUG: update called for transaction that is not open"); | |
812 | ||
813 | if ((flags & REF_ISPRUNING) && !(flags & REF_NODEREF)) | |
814 | die("BUG: REF_ISPRUNING set without REF_NODEREF"); | |
815 | ||
96ffc06f | 816 | FLEX_ALLOC_STR(update, refname, refname); |
caa4046c MH |
817 | ALLOC_GROW(transaction->updates, transaction->nr + 1, transaction->alloc); |
818 | transaction->updates[transaction->nr++] = update; | |
71564516 MH |
819 | |
820 | update->flags = flags; | |
821 | ||
822 | if (flags & REF_HAVE_NEW) | |
823 | hashcpy(update->new_sha1, new_sha1); | |
824 | if (flags & REF_HAVE_OLD) | |
825 | hashcpy(update->old_sha1, old_sha1); | |
13092a91 | 826 | update->msg = xstrdup_or_null(msg); |
caa4046c MH |
827 | return update; |
828 | } | |
829 | ||
8e34800e RS |
830 | int ref_transaction_update(struct ref_transaction *transaction, |
831 | const char *refname, | |
832 | const unsigned char *new_sha1, | |
833 | const unsigned char *old_sha1, | |
1d147bdf | 834 | unsigned int flags, const char *msg, |
8e34800e | 835 | struct strbuf *err) |
caa4046c | 836 | { |
5a603b04 JN |
837 | assert(err); |
838 | ||
8a679de6 MH |
839 | if ((new_sha1 && !is_null_sha1(new_sha1)) ? |
840 | check_refname_format(refname, REFNAME_ALLOW_ONELEVEL) : | |
841 | !refname_is_safe(refname)) { | |
0568c8e9 | 842 | strbuf_addf(err, "refusing to update ref with bad name '%s'", |
d0f810f0 RS |
843 | refname); |
844 | return -1; | |
845 | } | |
846 | ||
71564516 MH |
847 | flags |= (new_sha1 ? REF_HAVE_NEW : 0) | (old_sha1 ? REF_HAVE_OLD : 0); |
848 | ||
849 | ref_transaction_add_update(transaction, refname, flags, | |
850 | new_sha1, old_sha1, msg); | |
8e34800e | 851 | return 0; |
caa4046c MH |
852 | } |
853 | ||
b416af5b RS |
854 | int ref_transaction_create(struct ref_transaction *transaction, |
855 | const char *refname, | |
856 | const unsigned char *new_sha1, | |
fec14ec3 | 857 | unsigned int flags, const char *msg, |
b416af5b | 858 | struct strbuf *err) |
caa4046c | 859 | { |
f04c5b55 MH |
860 | if (!new_sha1 || is_null_sha1(new_sha1)) |
861 | die("BUG: create called without valid new_sha1"); | |
bc9f2925 | 862 | return ref_transaction_update(transaction, refname, new_sha1, |
1d147bdf | 863 | null_sha1, flags, msg, err); |
caa4046c MH |
864 | } |
865 | ||
8c8bdc0d RS |
866 | int ref_transaction_delete(struct ref_transaction *transaction, |
867 | const char *refname, | |
868 | const unsigned char *old_sha1, | |
fb5a6bb6 | 869 | unsigned int flags, const char *msg, |
8c8bdc0d | 870 | struct strbuf *err) |
caa4046c | 871 | { |
60294596 MH |
872 | if (old_sha1 && is_null_sha1(old_sha1)) |
873 | die("BUG: delete called with old_sha1 set to zeros"); | |
1d147bdf | 874 | return ref_transaction_update(transaction, refname, |
fb5a6bb6 | 875 | null_sha1, old_sha1, |
1d147bdf | 876 | flags, msg, err); |
caa4046c MH |
877 | } |
878 | ||
16180334 MH |
879 | int ref_transaction_verify(struct ref_transaction *transaction, |
880 | const char *refname, | |
881 | const unsigned char *old_sha1, | |
882 | unsigned int flags, | |
883 | struct strbuf *err) | |
884 | { | |
885 | if (!old_sha1) | |
886 | die("BUG: verify called with old_sha1 set to NULL"); | |
887 | return ref_transaction_update(transaction, refname, | |
888 | NULL, old_sha1, | |
889 | flags, NULL, err); | |
890 | } | |
891 | ||
8f6dc7e3 | 892 | int update_ref_oid(const char *msg, const char *refname, |
893 | const struct object_id *new_oid, const struct object_id *old_oid, | |
894 | unsigned int flags, enum action_on_err onerr) | |
895 | { | |
896 | return update_ref(msg, refname, new_oid ? new_oid->hash : NULL, | |
897 | old_oid ? old_oid->hash : NULL, flags, onerr); | |
898 | } | |
899 | ||
4b7b520b MH |
900 | int update_ref(const char *msg, const char *refname, |
901 | const unsigned char *new_sha1, const unsigned char *old_sha1, | |
fec14ec3 | 902 | unsigned int flags, enum action_on_err onerr) |
4738a333 | 903 | { |
74ec19d4 | 904 | struct ref_transaction *t = NULL; |
b4d75ac1 | 905 | struct strbuf err = STRBUF_INIT; |
74ec19d4 | 906 | int ret = 0; |
b4d75ac1 | 907 | |
74ec19d4 DT |
908 | if (ref_type(refname) == REF_TYPE_PSEUDOREF) { |
909 | ret = write_pseudoref(refname, new_sha1, old_sha1, &err); | |
910 | } else { | |
911 | t = ref_transaction_begin(&err); | |
912 | if (!t || | |
913 | ref_transaction_update(t, refname, new_sha1, old_sha1, | |
914 | flags, msg, &err) || | |
915 | ref_transaction_commit(t, &err)) { | |
916 | ret = 1; | |
917 | ref_transaction_free(t); | |
918 | } | |
919 | } | |
920 | if (ret) { | |
b4d75ac1 RS |
921 | const char *str = "update_ref failed for ref '%s': %s"; |
922 | ||
b4d75ac1 RS |
923 | switch (onerr) { |
924 | case UPDATE_REFS_MSG_ON_ERR: | |
925 | error(str, refname, err.buf); | |
926 | break; | |
927 | case UPDATE_REFS_DIE_ON_ERR: | |
928 | die(str, refname, err.buf); | |
929 | break; | |
930 | case UPDATE_REFS_QUIET_ON_ERR: | |
931 | break; | |
932 | } | |
933 | strbuf_release(&err); | |
4738a333 | 934 | return 1; |
b4d75ac1 RS |
935 | } |
936 | strbuf_release(&err); | |
74ec19d4 DT |
937 | if (t) |
938 | ref_transaction_free(t); | |
b4d75ac1 | 939 | return 0; |
4738a333 BK |
940 | } |
941 | ||
dfefa935 | 942 | char *shorten_unambiguous_ref(const char *refname, int strict) |
7c2b3029 JK |
943 | { |
944 | int i; | |
945 | static char **scanf_fmts; | |
946 | static int nr_rules; | |
947 | char *short_name; | |
948 | ||
7c2b3029 | 949 | if (!nr_rules) { |
4346663a MH |
950 | /* |
951 | * Pre-generate scanf formats from ref_rev_parse_rules[]. | |
952 | * Generate a format suitable for scanf from a | |
953 | * ref_rev_parse_rules rule by interpolating "%s" at the | |
954 | * location of the "%.*s". | |
955 | */ | |
7c2b3029 | 956 | size_t total_len = 0; |
84d5633f | 957 | size_t offset = 0; |
7c2b3029 JK |
958 | |
959 | /* the rule list is NULL terminated, count them first */ | |
a4165851 | 960 | for (nr_rules = 0; ref_rev_parse_rules[nr_rules]; nr_rules++) |
7902fe03 MH |
961 | /* -2 for strlen("%.*s") - strlen("%s"); +1 for NUL */ |
962 | total_len += strlen(ref_rev_parse_rules[nr_rules]) - 2 + 1; | |
7c2b3029 | 963 | |
50492f7b | 964 | scanf_fmts = xmalloc(st_add(st_mult(sizeof(char *), nr_rules), total_len)); |
7c2b3029 | 965 | |
84d5633f | 966 | offset = 0; |
7c2b3029 | 967 | for (i = 0; i < nr_rules; i++) { |
4346663a | 968 | assert(offset < total_len); |
84d5633f | 969 | scanf_fmts[i] = (char *)&scanf_fmts[nr_rules] + offset; |
4346663a MH |
970 | offset += snprintf(scanf_fmts[i], total_len - offset, |
971 | ref_rev_parse_rules[i], 2, "%s") + 1; | |
7c2b3029 JK |
972 | } |
973 | } | |
974 | ||
975 | /* bail out if there are no rules */ | |
976 | if (!nr_rules) | |
dfefa935 | 977 | return xstrdup(refname); |
7c2b3029 | 978 | |
dfefa935 MH |
979 | /* buffer for scanf result, at most refname must fit */ |
980 | short_name = xstrdup(refname); | |
7c2b3029 JK |
981 | |
982 | /* skip first rule, it will always match */ | |
983 | for (i = nr_rules - 1; i > 0 ; --i) { | |
984 | int j; | |
6e7b3309 | 985 | int rules_to_fail = i; |
7c2b3029 JK |
986 | int short_name_len; |
987 | ||
dfefa935 | 988 | if (1 != sscanf(refname, scanf_fmts[i], short_name)) |
7c2b3029 JK |
989 | continue; |
990 | ||
991 | short_name_len = strlen(short_name); | |
992 | ||
6e7b3309 BW |
993 | /* |
994 | * in strict mode, all (except the matched one) rules | |
995 | * must fail to resolve to a valid non-ambiguous ref | |
996 | */ | |
997 | if (strict) | |
998 | rules_to_fail = nr_rules; | |
999 | ||
7c2b3029 JK |
1000 | /* |
1001 | * check if the short name resolves to a valid ref, | |
1002 | * but use only rules prior to the matched one | |
1003 | */ | |
6e7b3309 | 1004 | for (j = 0; j < rules_to_fail; j++) { |
7c2b3029 | 1005 | const char *rule = ref_rev_parse_rules[j]; |
7c2b3029 JK |
1006 | char refname[PATH_MAX]; |
1007 | ||
6e7b3309 BW |
1008 | /* skip matched rule */ |
1009 | if (i == j) | |
1010 | continue; | |
1011 | ||
7c2b3029 JK |
1012 | /* |
1013 | * the short name is ambiguous, if it resolves | |
1014 | * (with this previous rule) to a valid ref | |
1015 | * read_ref() returns 0 on success | |
1016 | */ | |
1017 | mksnpath(refname, sizeof(refname), | |
1018 | rule, short_name_len, short_name); | |
c6893323 | 1019 | if (ref_exists(refname)) |
7c2b3029 JK |
1020 | break; |
1021 | } | |
1022 | ||
1023 | /* | |
1024 | * short name is non-ambiguous if all previous rules | |
1025 | * haven't resolved to a valid ref | |
1026 | */ | |
6e7b3309 | 1027 | if (j == rules_to_fail) |
7c2b3029 JK |
1028 | return short_name; |
1029 | } | |
1030 | ||
1031 | free(short_name); | |
dfefa935 | 1032 | return xstrdup(refname); |
7c2b3029 | 1033 | } |
daebaa78 JH |
1034 | |
1035 | static struct string_list *hide_refs; | |
1036 | ||
1037 | int parse_hide_refs_config(const char *var, const char *value, const char *section) | |
1038 | { | |
ad8c7cda | 1039 | const char *key; |
daebaa78 | 1040 | if (!strcmp("transfer.hiderefs", var) || |
ad8c7cda JK |
1041 | (!parse_config_key(var, section, NULL, NULL, &key) && |
1042 | !strcmp(key, "hiderefs"))) { | |
daebaa78 JH |
1043 | char *ref; |
1044 | int len; | |
1045 | ||
1046 | if (!value) | |
1047 | return config_error_nonbool(var); | |
1048 | ref = xstrdup(value); | |
1049 | len = strlen(ref); | |
1050 | while (len && ref[len - 1] == '/') | |
1051 | ref[--len] = '\0'; | |
1052 | if (!hide_refs) { | |
1053 | hide_refs = xcalloc(1, sizeof(*hide_refs)); | |
1054 | hide_refs->strdup_strings = 1; | |
1055 | } | |
1056 | string_list_append(hide_refs, ref); | |
1057 | } | |
1058 | return 0; | |
1059 | } | |
1060 | ||
78a766ab | 1061 | int ref_is_hidden(const char *refname, const char *refname_full) |
daebaa78 | 1062 | { |
2bc31d16 | 1063 | int i; |
daebaa78 JH |
1064 | |
1065 | if (!hide_refs) | |
1066 | return 0; | |
2bc31d16 JK |
1067 | for (i = hide_refs->nr - 1; i >= 0; i--) { |
1068 | const char *match = hide_refs->items[i].string; | |
78a766ab | 1069 | const char *subject; |
2bc31d16 | 1070 | int neg = 0; |
daebaa78 | 1071 | int len; |
2bc31d16 JK |
1072 | |
1073 | if (*match == '!') { | |
1074 | neg = 1; | |
1075 | match++; | |
1076 | } | |
1077 | ||
78a766ab LF |
1078 | if (*match == '^') { |
1079 | subject = refname_full; | |
1080 | match++; | |
1081 | } else { | |
1082 | subject = refname; | |
1083 | } | |
1084 | ||
1085 | /* refname can be NULL when namespaces are used. */ | |
1086 | if (!subject || !starts_with(subject, match)) | |
daebaa78 | 1087 | continue; |
2bc31d16 | 1088 | len = strlen(match); |
78a766ab | 1089 | if (!subject[len] || subject[len] == '/') |
2bc31d16 | 1090 | return !neg; |
daebaa78 JH |
1091 | } |
1092 | return 0; | |
1093 | } | |
fa5b1830 | 1094 | |
0845122c DT |
1095 | const char *find_descendant_ref(const char *dirname, |
1096 | const struct string_list *extras, | |
1097 | const struct string_list *skip) | |
fa5b1830 | 1098 | { |
0845122c | 1099 | int pos; |
fa5b1830 | 1100 | |
0845122c DT |
1101 | if (!extras) |
1102 | return NULL; | |
fa5b1830 MH |
1103 | |
1104 | /* | |
0845122c DT |
1105 | * Look at the place where dirname would be inserted into |
1106 | * extras. If there is an entry at that position that starts | |
1107 | * with dirname (remember, dirname includes the trailing | |
1108 | * slash) and is not in skip, then we have a conflict. | |
fa5b1830 | 1109 | */ |
0845122c DT |
1110 | for (pos = string_list_find_insert_index(extras, dirname, 0); |
1111 | pos < extras->nr; pos++) { | |
1112 | const char *extra_refname = extras->items[pos].string; | |
fa5b1830 | 1113 | |
0845122c DT |
1114 | if (!starts_with(extra_refname, dirname)) |
1115 | break; | |
1116 | ||
1117 | if (!skip || !string_list_has_string(skip, extra_refname)) | |
1118 | return extra_refname; | |
fa5b1830 | 1119 | } |
0845122c DT |
1120 | return NULL; |
1121 | } | |
fa5b1830 | 1122 | |
ff3a299c | 1123 | int rename_ref_available(const char *old_refname, const char *new_refname) |
0845122c DT |
1124 | { |
1125 | struct string_list skip = STRING_LIST_INIT_NODUP; | |
1126 | struct strbuf err = STRBUF_INIT; | |
ff3a299c | 1127 | int ok; |
fa5b1830 | 1128 | |
ff3a299c DT |
1129 | string_list_insert(&skip, old_refname); |
1130 | ok = !verify_refname_available(new_refname, NULL, &skip, &err); | |
1131 | if (!ok) | |
0845122c DT |
1132 | error("%s", err.buf); |
1133 | ||
1134 | string_list_clear(&skip, 0); | |
1135 | strbuf_release(&err); | |
ff3a299c | 1136 | return ok; |
fa5b1830 | 1137 | } |
2bf68ed5 DT |
1138 | |
1139 | int head_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data) | |
1140 | { | |
1141 | struct object_id oid; | |
1142 | int flag; | |
1143 | ||
1144 | if (submodule) { | |
1145 | if (resolve_gitlink_ref(submodule, "HEAD", oid.hash) == 0) | |
1146 | return fn("HEAD", &oid, 0, cb_data); | |
1147 | ||
1148 | return 0; | |
1149 | } | |
1150 | ||
1151 | if (!read_ref_full("HEAD", RESOLVE_REF_READING, oid.hash, &flag)) | |
1152 | return fn("HEAD", &oid, flag, cb_data); | |
1153 | ||
1154 | return 0; | |
1155 | } | |
1156 | ||
1157 | int head_ref(each_ref_fn fn, void *cb_data) | |
1158 | { | |
1159 | return head_ref_submodule(NULL, fn, cb_data); | |
1160 | } | |
93770590 | 1161 | |
4c4de895 MH |
1162 | /* |
1163 | * Call fn for each reference in the specified submodule for which the | |
1164 | * refname begins with prefix. If trim is non-zero, then trim that | |
1165 | * many characters off the beginning of each refname before passing | |
1166 | * the refname to fn. flags can be DO_FOR_EACH_INCLUDE_BROKEN to | |
1167 | * include broken references in the iteration. If fn ever returns a | |
1168 | * non-zero value, stop the iteration and return that value; | |
1169 | * otherwise, return 0. | |
1170 | */ | |
1171 | static int do_for_each_ref(const char *submodule, const char *prefix, | |
1172 | each_ref_fn fn, int trim, int flags, void *cb_data) | |
1173 | { | |
00eebe35 | 1174 | struct ref_store *refs = get_ref_store(submodule); |
4c4de895 MH |
1175 | struct ref_iterator *iter; |
1176 | ||
00eebe35 MH |
1177 | if (!refs) |
1178 | return 0; | |
1179 | ||
1a769003 | 1180 | iter = refs->be->iterator_begin(refs, prefix, flags); |
4c4de895 MH |
1181 | iter = prefix_ref_iterator_begin(iter, prefix, trim); |
1182 | ||
1183 | return do_for_each_ref_iterator(iter, fn, cb_data); | |
1184 | } | |
1185 | ||
93770590 DT |
1186 | int for_each_ref(each_ref_fn fn, void *cb_data) |
1187 | { | |
1188 | return do_for_each_ref(NULL, "", fn, 0, 0, cb_data); | |
1189 | } | |
1190 | ||
1191 | int for_each_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data) | |
1192 | { | |
1193 | return do_for_each_ref(submodule, "", fn, 0, 0, cb_data); | |
1194 | } | |
1195 | ||
1196 | int for_each_ref_in(const char *prefix, each_ref_fn fn, void *cb_data) | |
1197 | { | |
1198 | return do_for_each_ref(NULL, prefix, fn, strlen(prefix), 0, cb_data); | |
1199 | } | |
1200 | ||
1201 | int for_each_fullref_in(const char *prefix, each_ref_fn fn, void *cb_data, unsigned int broken) | |
1202 | { | |
1203 | unsigned int flag = 0; | |
1204 | ||
1205 | if (broken) | |
1206 | flag = DO_FOR_EACH_INCLUDE_BROKEN; | |
1207 | return do_for_each_ref(NULL, prefix, fn, 0, flag, cb_data); | |
1208 | } | |
1209 | ||
1210 | int for_each_ref_in_submodule(const char *submodule, const char *prefix, | |
1211 | each_ref_fn fn, void *cb_data) | |
1212 | { | |
1213 | return do_for_each_ref(submodule, prefix, fn, strlen(prefix), 0, cb_data); | |
1214 | } | |
1215 | ||
1216 | int for_each_replace_ref(each_ref_fn fn, void *cb_data) | |
1217 | { | |
1218 | return do_for_each_ref(NULL, git_replace_ref_base, fn, | |
1219 | strlen(git_replace_ref_base), 0, cb_data); | |
1220 | } | |
1221 | ||
1222 | int for_each_namespaced_ref(each_ref_fn fn, void *cb_data) | |
1223 | { | |
1224 | struct strbuf buf = STRBUF_INIT; | |
1225 | int ret; | |
1226 | strbuf_addf(&buf, "%srefs/", get_git_namespace()); | |
1227 | ret = do_for_each_ref(NULL, buf.buf, fn, 0, 0, cb_data); | |
1228 | strbuf_release(&buf); | |
1229 | return ret; | |
1230 | } | |
1231 | ||
1232 | int for_each_rawref(each_ref_fn fn, void *cb_data) | |
1233 | { | |
1234 | return do_for_each_ref(NULL, "", fn, 0, | |
1235 | DO_FOR_EACH_INCLUDE_BROKEN, cb_data); | |
1236 | } | |
2d0663b2 DT |
1237 | |
1238 | /* This function needs to return a meaningful errno on failure */ | |
3c0cb0cb MH |
1239 | const char *resolve_ref_recursively(struct ref_store *refs, |
1240 | const char *refname, | |
1241 | int resolve_flags, | |
1242 | unsigned char *sha1, int *flags) | |
2d0663b2 DT |
1243 | { |
1244 | static struct strbuf sb_refname = STRBUF_INIT; | |
1245 | int unused_flags; | |
1246 | int symref_count; | |
1247 | ||
1248 | if (!flags) | |
1249 | flags = &unused_flags; | |
1250 | ||
1251 | *flags = 0; | |
1252 | ||
1253 | if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) { | |
1254 | if (!(resolve_flags & RESOLVE_REF_ALLOW_BAD_NAME) || | |
1255 | !refname_is_safe(refname)) { | |
1256 | errno = EINVAL; | |
1257 | return NULL; | |
1258 | } | |
1259 | ||
1260 | /* | |
1261 | * dwim_ref() uses REF_ISBROKEN to distinguish between | |
1262 | * missing refs and refs that were present but invalid, | |
1263 | * to complain about the latter to stderr. | |
1264 | * | |
1265 | * We don't know whether the ref exists, so don't set | |
1266 | * REF_ISBROKEN yet. | |
1267 | */ | |
1268 | *flags |= REF_BAD_NAME; | |
1269 | } | |
1270 | ||
1271 | for (symref_count = 0; symref_count < SYMREF_MAXDEPTH; symref_count++) { | |
1272 | unsigned int read_flags = 0; | |
1273 | ||
e1e33b72 MH |
1274 | if (refs->be->read_raw_ref(refs, refname, |
1275 | sha1, &sb_refname, &read_flags)) { | |
2d0663b2 DT |
1276 | *flags |= read_flags; |
1277 | if (errno != ENOENT || (resolve_flags & RESOLVE_REF_READING)) | |
1278 | return NULL; | |
1279 | hashclr(sha1); | |
1280 | if (*flags & REF_BAD_NAME) | |
1281 | *flags |= REF_ISBROKEN; | |
1282 | return refname; | |
1283 | } | |
1284 | ||
1285 | *flags |= read_flags; | |
1286 | ||
1287 | if (!(read_flags & REF_ISSYMREF)) { | |
1288 | if (*flags & REF_BAD_NAME) { | |
1289 | hashclr(sha1); | |
1290 | *flags |= REF_ISBROKEN; | |
1291 | } | |
1292 | return refname; | |
1293 | } | |
1294 | ||
1295 | refname = sb_refname.buf; | |
1296 | if (resolve_flags & RESOLVE_REF_NO_RECURSE) { | |
1297 | hashclr(sha1); | |
1298 | return refname; | |
1299 | } | |
1300 | if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) { | |
1301 | if (!(resolve_flags & RESOLVE_REF_ALLOW_BAD_NAME) || | |
1302 | !refname_is_safe(refname)) { | |
1303 | errno = EINVAL; | |
1304 | return NULL; | |
1305 | } | |
1306 | ||
1307 | *flags |= REF_ISBROKEN | REF_BAD_NAME; | |
1308 | } | |
1309 | } | |
1310 | ||
1311 | errno = ELOOP; | |
1312 | return NULL; | |
1313 | } | |
00eebe35 | 1314 | |
6fb5acfd DT |
1315 | /* backend functions */ |
1316 | int refs_init_db(struct strbuf *err) | |
1317 | { | |
077be78d | 1318 | struct ref_store *refs = get_main_ref_store(); |
6fb5acfd DT |
1319 | |
1320 | return refs->be->init_db(refs, err); | |
1321 | } | |
1322 | ||
bd40dcda MH |
1323 | const char *resolve_ref_unsafe(const char *refname, int resolve_flags, |
1324 | unsigned char *sha1, int *flags) | |
1325 | { | |
077be78d | 1326 | return resolve_ref_recursively(get_main_ref_store(), refname, |
bd40dcda MH |
1327 | resolve_flags, sha1, flags); |
1328 | } | |
1329 | ||
a8355bb7 MH |
1330 | int resolve_gitlink_ref(const char *submodule, const char *refname, |
1331 | unsigned char *sha1) | |
424dcc76 | 1332 | { |
a8355bb7 | 1333 | size_t len = strlen(submodule); |
424dcc76 MH |
1334 | struct ref_store *refs; |
1335 | int flags; | |
1336 | ||
a8355bb7 | 1337 | while (len && submodule[len - 1] == '/') |
424dcc76 | 1338 | len--; |
48a8475f | 1339 | |
424dcc76 MH |
1340 | if (!len) |
1341 | return -1; | |
1342 | ||
a8355bb7 | 1343 | if (submodule[len]) { |
48a8475f | 1344 | /* We need to strip off one or more trailing slashes */ |
a8355bb7 | 1345 | char *stripped = xmemdupz(submodule, len); |
48a8475f MH |
1346 | |
1347 | refs = get_ref_store(stripped); | |
1348 | free(stripped); | |
1349 | } else { | |
a8355bb7 | 1350 | refs = get_ref_store(submodule); |
48a8475f MH |
1351 | } |
1352 | ||
424dcc76 MH |
1353 | if (!refs) |
1354 | return -1; | |
1355 | ||
1356 | if (!resolve_ref_recursively(refs, refname, 0, sha1, &flags) || | |
1357 | is_null_sha1(sha1)) | |
1358 | return -1; | |
1359 | return 0; | |
1360 | } | |
1361 | ||
7d4558c4 MH |
1362 | struct submodule_hash_entry |
1363 | { | |
1364 | struct hashmap_entry ent; /* must be the first member! */ | |
1365 | ||
1366 | struct ref_store *refs; | |
1367 | ||
1368 | /* NUL-terminated name of submodule: */ | |
1369 | char submodule[FLEX_ARRAY]; | |
1370 | }; | |
1371 | ||
1372 | static int submodule_hash_cmp(const void *entry, const void *entry_or_key, | |
1373 | const void *keydata) | |
1374 | { | |
1375 | const struct submodule_hash_entry *e1 = entry, *e2 = entry_or_key; | |
1376 | const char *submodule = keydata ? keydata : e2->submodule; | |
1377 | ||
1378 | return strcmp(e1->submodule, submodule); | |
1379 | } | |
1380 | ||
1381 | static struct submodule_hash_entry *alloc_submodule_hash_entry( | |
1382 | const char *submodule, struct ref_store *refs) | |
1383 | { | |
1384 | struct submodule_hash_entry *entry; | |
1385 | ||
1386 | FLEX_ALLOC_STR(entry, submodule, submodule); | |
1387 | hashmap_entry_init(entry, strhash(submodule)); | |
1388 | entry->refs = refs; | |
1389 | return entry; | |
1390 | } | |
1391 | ||
00eebe35 MH |
1392 | /* A pointer to the ref_store for the main repository: */ |
1393 | static struct ref_store *main_ref_store; | |
1394 | ||
7d4558c4 MH |
1395 | /* A hashmap of ref_stores, stored by submodule name: */ |
1396 | static struct hashmap submodule_ref_stores; | |
00eebe35 | 1397 | |
c468da4e | 1398 | /* |
9476c6ed NTND |
1399 | * Return the ref_store instance for the specified submodule. If that |
1400 | * ref_store hasn't been initialized yet, return NULL. | |
c468da4e | 1401 | */ |
9476c6ed | 1402 | static struct ref_store *lookup_submodule_ref_store(const char *submodule) |
00eebe35 | 1403 | { |
7d4558c4 | 1404 | struct submodule_hash_entry *entry; |
00eebe35 | 1405 | |
7d4558c4 MH |
1406 | if (!submodule_ref_stores.tablesize) |
1407 | /* It's initialized on demand in register_ref_store(). */ | |
1408 | return NULL; | |
620a66b9 | 1409 | |
7d4558c4 MH |
1410 | entry = hashmap_get_from_hash(&submodule_ref_stores, |
1411 | strhash(submodule), submodule); | |
1412 | return entry ? entry->refs : NULL; | |
00eebe35 MH |
1413 | } |
1414 | ||
c468da4e MH |
1415 | /* |
1416 | * Create, record, and return a ref_store instance for the specified | |
5d0bc90e | 1417 | * gitdir. |
c468da4e | 1418 | */ |
5d0bc90e | 1419 | static struct ref_store *ref_store_init(const char *gitdir) |
00eebe35 MH |
1420 | { |
1421 | const char *be_name = "files"; | |
1422 | struct ref_storage_be *be = find_ref_storage_backend(be_name); | |
ba88add5 | 1423 | struct ref_store *refs; |
00eebe35 MH |
1424 | |
1425 | if (!be) | |
1426 | die("BUG: reference backend %s is unknown", be_name); | |
1427 | ||
5d0bc90e | 1428 | refs = be->init(gitdir); |
ba88add5 | 1429 | return refs; |
00eebe35 MH |
1430 | } |
1431 | ||
077be78d | 1432 | struct ref_store *get_main_ref_store(void) |
24c8407e NTND |
1433 | { |
1434 | if (main_ref_store) | |
1435 | return main_ref_store; | |
1436 | ||
5d0bc90e | 1437 | main_ref_store = ref_store_init(get_git_dir()); |
378dc910 NTND |
1438 | return main_ref_store; |
1439 | } | |
1440 | ||
1441 | /* | |
1442 | * Register the specified ref_store to be the one that should be used | |
1443 | * for submodule. It is a fatal error to call this function twice for | |
1444 | * the same submodule. | |
1445 | */ | |
1446 | static void register_submodule_ref_store(struct ref_store *refs, | |
1447 | const char *submodule) | |
1448 | { | |
1449 | if (!submodule_ref_stores.tablesize) | |
1450 | hashmap_init(&submodule_ref_stores, submodule_hash_cmp, 0); | |
1451 | ||
1452 | if (hashmap_put(&submodule_ref_stores, | |
1453 | alloc_submodule_hash_entry(submodule, refs))) | |
1454 | die("BUG: ref_store for submodule '%s' initialized twice", | |
1455 | submodule); | |
24c8407e NTND |
1456 | } |
1457 | ||
00eebe35 MH |
1458 | struct ref_store *get_ref_store(const char *submodule) |
1459 | { | |
126c9e05 | 1460 | struct strbuf submodule_sb = STRBUF_INIT; |
00eebe35 | 1461 | struct ref_store *refs; |
126c9e05 | 1462 | int ret; |
00eebe35 MH |
1463 | |
1464 | if (!submodule || !*submodule) { | |
24c8407e | 1465 | return get_main_ref_store(); |
126c9e05 | 1466 | } |
00eebe35 | 1467 | |
126c9e05 NTND |
1468 | refs = lookup_submodule_ref_store(submodule); |
1469 | if (refs) | |
1470 | return refs; | |
00eebe35 | 1471 | |
126c9e05 NTND |
1472 | strbuf_addstr(&submodule_sb, submodule); |
1473 | ret = is_nonbare_repository_dir(&submodule_sb); | |
1474 | strbuf_release(&submodule_sb); | |
1475 | if (!ret) | |
1476 | return NULL; | |
1477 | ||
5d0bc90e NTND |
1478 | ret = submodule_to_gitdir(&submodule_sb, submodule); |
1479 | if (ret) { | |
1480 | strbuf_release(&submodule_sb); | |
1481 | return NULL; | |
1482 | } | |
1483 | ||
1484 | refs = ref_store_init(submodule_sb.buf); | |
378dc910 | 1485 | register_submodule_ref_store(refs, submodule); |
5d0bc90e NTND |
1486 | |
1487 | strbuf_release(&submodule_sb); | |
00eebe35 MH |
1488 | return refs; |
1489 | } | |
1490 | ||
620a66b9 | 1491 | void base_ref_store_init(struct ref_store *refs, |
fbfd0a29 | 1492 | const struct ref_storage_be *be) |
00eebe35 | 1493 | { |
620a66b9 | 1494 | refs->be = be; |
00eebe35 | 1495 | } |
127b42a1 RS |
1496 | |
1497 | /* backend functions */ | |
8231527e MH |
1498 | int pack_refs(unsigned int flags) |
1499 | { | |
077be78d | 1500 | struct ref_store *refs = get_main_ref_store(); |
8231527e MH |
1501 | |
1502 | return refs->be->pack_refs(refs, flags); | |
1503 | } | |
1504 | ||
bd427cf2 MH |
1505 | int peel_ref(const char *refname, unsigned char *sha1) |
1506 | { | |
077be78d | 1507 | struct ref_store *refs = get_main_ref_store(); |
bd427cf2 MH |
1508 | |
1509 | return refs->be->peel_ref(refs, refname, sha1); | |
1510 | } | |
1511 | ||
284689ba MH |
1512 | int create_symref(const char *ref_target, const char *refs_heads_master, |
1513 | const char *logmsg) | |
1514 | { | |
077be78d | 1515 | struct ref_store *refs = get_main_ref_store(); |
284689ba MH |
1516 | |
1517 | return refs->be->create_symref(refs, ref_target, refs_heads_master, | |
1518 | logmsg); | |
1519 | } | |
1520 | ||
127b42a1 RS |
1521 | int ref_transaction_commit(struct ref_transaction *transaction, |
1522 | struct strbuf *err) | |
1523 | { | |
077be78d | 1524 | struct ref_store *refs = get_main_ref_store(); |
127b42a1 RS |
1525 | |
1526 | return refs->be->transaction_commit(refs, transaction, err); | |
1527 | } | |
62665823 MH |
1528 | |
1529 | int verify_refname_available(const char *refname, | |
1530 | const struct string_list *extra, | |
1531 | const struct string_list *skip, | |
1532 | struct strbuf *err) | |
1533 | { | |
077be78d | 1534 | struct ref_store *refs = get_main_ref_store(); |
62665823 MH |
1535 | |
1536 | return refs->be->verify_refname_available(refs, refname, extra, skip, err); | |
1537 | } | |
e3688bd6 DT |
1538 | |
1539 | int for_each_reflog(each_ref_fn fn, void *cb_data) | |
1540 | { | |
077be78d | 1541 | struct ref_store *refs = get_main_ref_store(); |
e3688bd6 DT |
1542 | struct ref_iterator *iter; |
1543 | ||
1544 | iter = refs->be->reflog_iterator_begin(refs); | |
1545 | ||
1546 | return do_for_each_ref_iterator(iter, fn, cb_data); | |
1547 | } | |
1548 | ||
1549 | int for_each_reflog_ent_reverse(const char *refname, each_reflog_ent_fn fn, | |
1550 | void *cb_data) | |
1551 | { | |
077be78d | 1552 | struct ref_store *refs = get_main_ref_store(); |
e3688bd6 DT |
1553 | |
1554 | return refs->be->for_each_reflog_ent_reverse(refs, refname, | |
1555 | fn, cb_data); | |
1556 | } | |
1557 | ||
1558 | int for_each_reflog_ent(const char *refname, each_reflog_ent_fn fn, | |
1559 | void *cb_data) | |
1560 | { | |
077be78d | 1561 | struct ref_store *refs = get_main_ref_store(); |
e3688bd6 DT |
1562 | |
1563 | return refs->be->for_each_reflog_ent(refs, refname, fn, cb_data); | |
1564 | } | |
1565 | ||
1566 | int reflog_exists(const char *refname) | |
1567 | { | |
077be78d | 1568 | struct ref_store *refs = get_main_ref_store(); |
e3688bd6 DT |
1569 | |
1570 | return refs->be->reflog_exists(refs, refname); | |
1571 | } | |
1572 | ||
1573 | int safe_create_reflog(const char *refname, int force_create, | |
1574 | struct strbuf *err) | |
1575 | { | |
077be78d | 1576 | struct ref_store *refs = get_main_ref_store(); |
e3688bd6 DT |
1577 | |
1578 | return refs->be->create_reflog(refs, refname, force_create, err); | |
1579 | } | |
1580 | ||
1581 | int delete_reflog(const char *refname) | |
1582 | { | |
077be78d | 1583 | struct ref_store *refs = get_main_ref_store(); |
e3688bd6 DT |
1584 | |
1585 | return refs->be->delete_reflog(refs, refname); | |
1586 | } | |
1587 | ||
1588 | int reflog_expire(const char *refname, const unsigned char *sha1, | |
1589 | unsigned int flags, | |
1590 | reflog_expiry_prepare_fn prepare_fn, | |
1591 | reflog_expiry_should_prune_fn should_prune_fn, | |
1592 | reflog_expiry_cleanup_fn cleanup_fn, | |
1593 | void *policy_cb_data) | |
1594 | { | |
077be78d | 1595 | struct ref_store *refs = get_main_ref_store(); |
e3688bd6 DT |
1596 | |
1597 | return refs->be->reflog_expire(refs, refname, sha1, flags, | |
1598 | prepare_fn, should_prune_fn, | |
1599 | cleanup_fn, policy_cb_data); | |
1600 | } | |
fc681463 DT |
1601 | |
1602 | int initial_ref_transaction_commit(struct ref_transaction *transaction, | |
1603 | struct strbuf *err) | |
1604 | { | |
077be78d | 1605 | struct ref_store *refs = get_main_ref_store(); |
fc681463 DT |
1606 | |
1607 | return refs->be->initial_transaction_commit(refs, transaction, err); | |
1608 | } | |
a27dcf89 DT |
1609 | |
1610 | int delete_refs(struct string_list *refnames, unsigned int flags) | |
1611 | { | |
077be78d | 1612 | struct ref_store *refs = get_main_ref_store(); |
a27dcf89 DT |
1613 | |
1614 | return refs->be->delete_refs(refs, refnames, flags); | |
1615 | } | |
9b6b40d9 DT |
1616 | |
1617 | int rename_ref(const char *oldref, const char *newref, const char *logmsg) | |
1618 | { | |
077be78d | 1619 | struct ref_store *refs = get_main_ref_store(); |
9b6b40d9 DT |
1620 | |
1621 | return refs->be->rename_ref(refs, oldref, newref, logmsg); | |
1622 | } |